I'm currently on the RHCSA path myself, and I can tell you that the courses are not worth the thousands that Red Hat charges. There are plenty of unofficial video courses on YouTube and Udemy and study guides and practice tests on GitHub that are free or cheap, and other resources for every individual study topic, which will be good enough.
However, though I can't speak from experience, it seems like the cert itself will look good enough on a resume to justify the investment of $500 and a month of studying.
I'm not averse to trying new foods, but I have strong aversions to certain foods that I have tried. If I have a bad experience with one food, I will not be willing to try it again for a very long time, possibly ever. And if I have a good experience with one food, and it is easily available to me, it will remain in regular rotation for a very long time.